Improvement in call-bells



UNITED STATES HENRY A. DIERKES, OF NEW YORK, N. Y.

IMPRovEMl-:NT IN CALL-BELLS.

Specification forming part of Letters Patent No. 117,871, dated August 8, 1871.

To all whom it may concern:

Be it known that I, HENRY A. DIERxEs, of the city, county, and State of New York, have invented an Improved Call-Bell, of which the following is a specification:

My improvement has for its obj ect to simplify the operating mechanism of this class of bells, and thereby reduce the cost as well as to insure more reliable and efficient action 5 and it consists in connecting the hammer and plunger-rod by means of a concentric loaded axial coupling, having support in suitable bearings within the gong or bell.

Figure 1 is a front elevation with the gong ial pin, c, iind support. The hammer E is rigidly affixed to the coupling D, (which may be round or of any suitable shape,) so as to hang downward, by gravity, when at rest, while the plunger-rod j' is connected with the opposite side of the coupling. The rod f passes loosely through a'hole in the tubular guide of sleeve g, which admits of free vertical and slight lateral motion ofthe rod, and on the top thereof is a button, h; A slight blow or pressure downward on this button puts the axial coupling D in motion until it has revolved far enough to bring the hammer E in con tact with. the gong, when the recoil and return of the hammer replaces rod j' and button h in their former positions in readiness to be actuated again.

The return ofthe hammer is effected by its weight acting as a lever to raise the rod and button through the intermediate connection of the coupling, and the latter is preferably made heavier on the side next the hammer in -order to aid that effect and permit of a smaller hammer being used, as ornament or utility may require, said weight also serving the purpose of increasing the blow. The weighted side of the coupling is in a direct line between the hammer, the axis, and plungerrod, and the arrangement is such that a very slight movement of the latter downward gives the necessary segmental sweep of the hammer to strike the gong. To render the blow effective, as well as to insure resilient action, the intermediate weight ofthe coupling acts in an effect ual manner, while the arrangement is compact and simple.

The advantages of this device are its simplic- I ity and reduced cost, reliability of action, nonliability to get out of repair, and admitting of the parts below the coupling (which, itself, is mainly concealed) to be made ornamental, and obviating the necessity of a jacket to conceal the working parts.

I claim- The arrangement of the hammer E, coupling D, and rod j', in which the weighted side oi' the coupling is in a right line with the hammer, axis, and rod, whereby a slight motion of the latter imparts a quick and extended movement to the hammer, producing an effective blow upon the gong and a rapid subsidence to a position of rest, substantially as set forth.

HENRY A. DIERKES.

. Witnesses:

K. N. JONES, WrW. PHILLIPS. 

